If SQLITE_TEST_REALLOC_STRESS is defined, extend the op-code array used by virtual-machine programs by one element at a time, instead of doubling its size with each realloc().

FossilOrigin-Name: 4c291827224b84487a38e7ccba2edabc0f15b5ba

manifest

@@ -1,5 +1,5 @@
-C Fix\stypos\sin\sthe\sVxWorks\scode\sof\sos_unix.c.
-D 2014-08-12T12:19:25.484
+C If\sSQLITE_TEST_REALLOC_STRESS\sis\sdefined,\sextend\sthe\sop-code\sarray\sused\sby\svirtual-machine\sprograms\sby\sone\selement\sat\sa\stime,\sinstead\sof\sdoubling\sits\ssize\swith\seach\srealloc().
+D 2014-08-12T13:38:52.837
 F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
 F Makefile.in 5eb79e334a5de69c87740edd56af6527dd219308
 F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@ -287,7 +287,7 @@ F src/vdbe.c cd8d7e3ecd3e0e0684f6bf48469966335c666883
 F src/vdbe.h c63fad052c9e7388d551e556e119c0bcf6bebdf8
 F src/vdbeInt.h f5513f2b5ac1e2c5128996c7ea23add256a301df
 F src/vdbeapi.c 24e40422382beb774daab11fe9fe9d37e8a04949
-F src/vdbeaux.c bbe934b0d472c98f57433829db91fc052e90fa17
+F src/vdbeaux.c d83ca171e5df5fdea95e61b6e935d78c02b9d982
 F src/vdbeblob.c 9205ce9d3b064d9600f8418a897fc88b5687d9ac
 F src/vdbemem.c d90a1e8acf8b63dc9d14cbbea12bfec6cec31394
 F src/vdbesort.c f7f5563bf7d4695ca8f3203f3bf9de96d04ed0b3
@@ -613,7 +613,7 @@ F test/incrblob.test e81846d214f3637622620fbde7cd526781cfe328
 F test/incrblob2.test bf4d549aa4a466d7fbe3e3a3693d3861263d5600
 F test/incrblob3.test d8d036fde015d4a159cd3cbae9d29003b37227a4
 F test/incrblob4.test f26502a5697893e5acea268c910f16478c2f0fab
-F test/incrblob_err.test d2562d2771ebffd4b3af89ef64c140dd44371597
+F test/incrblob_err.test af1f12ba60d220c9752073ff2bda2ad59e88960d
 F test/incrblobfault.test 280474078f6da9e732cd2a215d3d854969014b6e
 F test/incrvacuum.test d2a6ddf5e429720b5fe502766af747915ccf6c32
 F test/incrvacuum2.test 379eeb8740b0ef60c372c439ad4cbea20b34bb9b
@@ -676,7 +676,7 @@ F test/lock_common.tcl 0c270b121d40959fa2f3add382200c27045b3d95
 F test/lookaside.test 93f07bac140c5bb1d49f3892d2684decafdc7af2
 F test/main.test 39c4bb8a157f57298ed1659d6df89d9f35aaf2c8
 F test/make-where7.tcl 05c16b5d4f5d6512881dfec560cb793915932ef9
-F test/malloc.test fd368e31fe98d4779ed80442f311ed9f03bcd1f7
+F test/malloc.test 4eb83876dfe4915766c179b687b8640437f14abf
 F test/malloc3.test e3b32c724b5a124b57cb0ed177f675249ad0c66a
 F test/malloc4.test 957337613002b7058a85116493a262f679f3a261
 F test/malloc5.test fafce0aa9157060445cd1a56ad50fc79d82f28c3
@@ -697,7 +697,7 @@ F test/mallocI.test a88c2b9627c8506bf4703d8397420043a786cdb6
 F test/mallocJ.test b5d1839da331d96223e5f458856f8ffe1366f62e
 F test/mallocK.test 3cff7c0f64735f6883bacdd294e45a6ed5714817
 F test/mallocL.test 252ddc7eb4fbf75364eab17b938816085ff1fc17
-F test/malloc_common.tcl 58e54229c4132ef882a11fab6419ec4cd3073589
+F test/malloc_common.tcl 3663f9001ce3e29bbaa9677ffe15cd468e3ec7e3
 F test/manydb.test 28385ae2087967aa05c38624cec7d96ec74feb3e
 F test/mem5.test c6460fba403c5703141348cd90de1c294188c68f
 F test/memdb.test fcb5297b321b562084fc79d64d5a12a1cd2b639b
@@ -1186,7 +1186,7 @@ F tool/vdbe_profile.tcl 67746953071a9f8f2f668b73fe899074e2c6d8c1
 F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
 F tool/warnings.sh 0abfd78ceb09b7f7c27c688c8e3fe93268a13b32
 F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
-P 31356f2cae26278660e6bd360ad35e57261d977c
-R 3b3addf1401dd2b7481a8053af2cf7fe
-U drh
-Z 2e7aab7a2b3236c3b8e957ada63bd33e
+P 19682e8fdc4a3b7884dba3e4387763e435ec16e6
+R c6c0e18a93e2092b23f216934f9dfe20
+U dan
+Z 311715db7c795982c324ba776d8b3111

manifest.uuid

@@ -1 +1 @@
-19682e8fdc4a3b7884dba3e4387763e435ec16e6
+4c291827224b84487a38e7ccba2edabc0f15b5ba

src/vdbeaux.c

@@ -84,18 +84,30 @@ void sqlite3VdbeSwap(Vdbe *pA, Vdbe *pB){
 }
 
 /*
-** Resize the Vdbe.aOp array so that it is at least one op larger than 
-** it was.
+** Resize the Vdbe.aOp array so that it is at least nOp elements larger 
+** its current size. nOp is guaranteed to be less than or equal to 1024.
 **
 ** If an out-of-memory error occurs while resizing the array, return
-** SQLITE_NOMEM. In this case Vdbe.aOp and Vdbe.nOpAlloc remain 
+** SQLITE_NOMEM. In this case Vdbe.aOp and Parse.nOpAlloc remain 
 ** unchanged (this is so that any opcodes already allocated can be 
 ** correctly deallocated along with the rest of the Vdbe).
 */
-static int growOpArray(Vdbe *v){
+static int growOpArray(Vdbe *v, int nOp){
   VdbeOp *pNew;
   Parse *p = v->pParse;
+
+  /* If SQLITE_TEST_REALLOC_STRESS is defined and the current op array is
+  ** less than 512 entries in size, grow the op array by the minimum amount 
+  ** required. Otherwise, allocate either double the current size of the 
+  ** array or 1KB of space, whichever is smaller.  */
+#ifdef SQLITE_TEST_REALLOC_STRESS
+  int nNew = (p->nOpAlloc>=512 ? p->nOpAlloc*2 : p->nOpAlloc+nOp);
+#else
   int nNew = (p->nOpAlloc ? p->nOpAlloc*2 : (int)(1024/sizeof(Op)));
+  UNUSED_PARAMETER(nOp);
+#endif
+
+  assert( nNew>=(p->nOpAlloc+nOp) );
   pNew = sqlite3DbRealloc(p->db, v->aOp, nNew*sizeof(Op));
   if( pNew ){
     p->nOpAlloc = sqlite3DbMallocSize(p->db, pNew)/sizeof(Op);
@@ -139,7 +151,7 @@ int sqlite3VdbeAddOp3(Vdbe *p, int op, int p1, int p2, int p3){
   assert( p->magic==VDBE_MAGIC_INIT );
   assert( op>0 && op<0xff );
   if( p->pParse->nOpAlloc<=i ){
-    if( growOpArray(p) ){
+    if( growOpArray(p, 1) ){
       return 1;
     }
   }
@@ -541,7 +553,7 @@ VdbeOp *sqlite3VdbeTakeOpArray(Vdbe *p, int *pnOp, int *pnMaxArg){
 int sqlite3VdbeAddOpList(Vdbe *p, int nOp, VdbeOpList const *aOp, int iLineno){
   int addr;
   assert( p->magic==VDBE_MAGIC_INIT );
-  if( p->nOp + nOp > p->pParse->nOpAlloc && growOpArray(p) ){
+  if( p->nOp + nOp > p->pParse->nOpAlloc && growOpArray(p, nOp) ){
     return 0;
   }
   addr = p->nOp;
@@ -726,7 +738,7 @@ void sqlite3VdbeLinkSubProgram(Vdbe *pVdbe, SubProgram *p){
 ** Change the opcode at addr into OP_Noop
 */
 void sqlite3VdbeChangeToNoop(Vdbe *p, int addr){
-  if( p->aOp ){
+  if( addr<p->nOp ){
     VdbeOp *pOp = &p->aOp[addr];
     sqlite3 *db = p->db;
     freeP4(db, pOp->p4type, pOp->p4.p);

test/incrblob_err.test

@@ -14,6 +14,7 @@
 
 set testdir [file dirname $argv0]
 source $testdir/tester.tcl
+set ::testprefix incrblob_err
 
 ifcapable {!incrblob  || !memdebug || !tclvar} {
   finish_test

test/malloc.test

@@ -20,6 +20,7 @@
 
 set testdir [file dirname $argv0]
 source $testdir/tester.tcl
+set ::testprefix malloc
 
 
 # Only run these tests if memory debugging is turned on.

test/malloc_common.tcl

@@ -409,6 +409,7 @@ proc do_malloc_test {tn args} {
 
   if {[string is integer $tn]} {
     set tn malloc-$tn
+    catch { set tn $::testprefix-$tn }
   }
   if {[info exists ::mallocopts(-start)]} {
     set start $::mallocopts(-start)